Shared class in java.

I have many projects in a software. Although some files and classes are shared within these projects, there are classes used by most of these projects. How do i creat classes that can be shaed among different projects . Is there anything in java that can function the same as 'modules' in vb.net?
Thanks a lot.

Create a seperate Project with some classes and then you can import these classes like you import any other class:

import java.util.*

The only difference is that you will be importing your classes with their packages.
You can take the .class files (in their folder/package) or create a jar file with the classes. Then add that to the classpath of the project you want them to be used.